Electric lamp and discharge devices – Cathode ray tube – Shadow mask – support or shield
Patent
1986-03-03
1988-02-16
Moore, David K.
Electric lamp and discharge devices
Cathode ray tube
Shadow mask, support or shield
313408, 313482, H01J 2907, H01J 2982
Patent
active
047257563
ABSTRACT:
A front assembly for a color cathode ray tube is disclosed. The tube includes a faceplate having on its inner surface a centrally disposed phosphor screen. A shadow mask support structure is resting on and secured to the inner surface of the faceplate on opposed sides of the screen. A foil shadow mask is secured to the structure under high inward tension. The shadow mask support structure according to the invention is characterized by having at least one foot resting on the inner surface for bracing and stabilizing the structure against upset from the high tension of the mask. Other embodiments of the invention are shown in which one or more of the feet have a plurality of open-ended or closed-ended openings therein for facilitating passage of the cement used for attaching the support structure to the inner surface of the faceplate. The openings according to the invention present cement-contactible edges for enhancing the securement of the support structure.
REFERENCES:
patent: 2625734 (1953-01-01), Law
patent: 2842696 (1958-07-01), Fischer-Colbrie
patent: 2905845 (1959-09-01), Vincent
patent: 3030536 (1956-04-01), Hackett et al.
patent: 3284655 (1966-11-01), Oess
patent: 3727087 (1973-04-01), Steinberg et al.
patent: 3735179 (1973-05-01), Kaplan
patent: 3894321 (1975-07-01), Moore
patent: 4045701 (1977-08-01), Dougherty
patent: 4100451 (1978-07-01), Palac
patent: 4547696 (1985-10-01), Strauss
Journal Article, "The CBS Colortron: A Color Picture Tube of Advanced Design", Fyler et al., Proc. of the Ire, Jan. 1954.
Tektronix, Inc. spec sheet: "Avionics Color Cathode Ray Tube", TEK T8100.
Tektronix Journal Article: "A High Brightness Shadow Mask Color CRT for Cockpit Displays," Society for Information Display, Philadelphia, May, 1983.
Clarke, Jr. Ralph E.
Moore David K.
Wieder K.
Zenith Electronics Corporation
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